package com.example.demo.test;

import java.util.function.Predicate;

public class College {
    private President president;

    public President getPresident(){
        return president;
    }
    public void setPresident(President president){
        this.president=president;
    }

    public static void main(String[] args){
        College college=new College();
        President president1=new President();
        college.setPresident(president1);
        college.getPresident().hello();
    }
}
